Does adding headers require re-tune?

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Aug 19, 2005 | 03:49 PM

chucky7

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Burning Brakes

Joined: Feb 2005

Posts: 1,198

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From: palm harbor Florida

Does adding headers require re-tune?

I have a set of corsas and a halltech and a tune and dyno. If I add headers and cats will I require a new tune? After my original tune and halltech stinger, the car ran seat of the pants great

Chucky7

Aug 19, 2005 | 05:00 PM

Virt

Racer

Joined: Feb 2005

Posts: 320

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From: San Jose CA

Require? No. But with any new mod that significantly changes power numbers, a re-tune would be needed to re-optimize your setup. I think re-tuning after headers is what most people would do.

Aug 19, 2005 | 06:28 PM

billywallstreet73

Pro

Joined: Feb 2004

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From: fort lauderdale fl

what did your car dyno with the corsas,stinger and tune? I had similar setup except bullets instead of corsas and did 357rwhp. 6spd,6k

Aug 19, 2005 | 06:35 PM

haljensen

Race Director

Joined: Mar 2005

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From: Austin Texas

I would recommend a new tune. I did a dyno w/just Magnaflow mufflers, then today did a dyno with 1 7/8" Supermaxx headers added and the car went .5 point leaner. If the tune leaned your A/F ratios you will probably need to richen up a little. Too lean = heat and pressure increase.

Aug 19, 2005 | 09:32 PM

archtop

Drifting

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Only if you want to go faster,

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